The term Reco on a thermostat typically abbreviates Recovery Mode. This function initiates heating or cooling early to meet scheduled temperature targets. It is designed to optimize energy usage while maintaining user comfort.
The ‘Fan On’ setting on a thermostat forces the HVAC blower motor to run continuously, regardless of whether the heating or cooling systems are actively cycling. This differs from the ‘Auto’ setting, where the fan only operates when the system is actively heating or cooling the air.
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Permanent hold is a thermostat setting that overrides scheduled programming indefinitely. It maintains a specific temperature until manually changed. This feature is common in programmable and smart thermostats.
The ‘Dry’ mode on an air conditioner functions as a dehumidifier, removing excess moisture from the air without significantly lowering the temperature. It is primarily used to improve comfort during humid but not excessively hot weather.
In thermostat terminology, ‘Set,’ ‘Hold,’ and ‘Run’ refer to the interaction between manual temperature adjustments and programmed schedules. They determine whether a device follows a pre-set timetable or maintains a specific temperature indefinitely.
The term “fan circulate” is commonly used in heating, ventilation, and air‑conditioning (HVAC) systems to indicate a mode where the fan operates without engaging heating or cooling. This setting helps move indoor air for improved temperature uniformity and indoor‑air quality while using minimal energy.
CFM most commonly refers to ‘Cubic Feet per Minute,’ a measure of airflow volume used in HVAC and engineering. It can also refer to various organizational or technical terms depending on the context.
The ‘circulate’ setting on a thermostat activates the HVAC blower fan independently of the heating or cooling systems. This mode moves air throughout a building to maintain temperature uniformity and improve air quality without engaging the furnace or air conditioner.
When a thermostat displays ‘Auxiliary Heat,’ it indicates that an additional heating source is being activated to maintain the set temperature, typically because the primary heat pump system alone cannot meet the demand.